Microcrystalline wax used for sealant

The primary functions of microcrystalline wax in sealants:
Anti-adhesion and stain resistance:
Surface protection: Forms an extremely thin, transparent wax film on the
surface of cured sealants (such as silicone or polyurethane sealants).
Contamination Prevention: This wax film effectively prevents contaminants
such as construction site dust, cement slurry, and paint splatter from
adhering to the uncured sealant surface, maintaining the joint's aesthetic
appearance and cleanliness.
Ease of Cleaning: Even if contaminants do adhere, they are significantly
easier to wipe away.
Controlling the Curing Process:
For certain moisture-curing sealants (such as single-component silicone
sealants and polyurethane sealants), the microcrystalline wax film on the
surface can moderately slow the rate at which the top layer comes into
contact with atmospheric moisture.
Prevents ‘skin formation’: Avoids premature surface hardening that leaves
the interior liquid, ensuring uniform and complete curing from the inside
out. This delivers superior overall performance.